Re: Scoring base64 blob messages

2006-10-27 Thread Theo Van Dinter
On Fri, Oct 27, 2006 at 05:24:58PM -0400, Peter H. Lemieux wrote: > >Well, there isn't "a" SA corpus, so there's no answer to that question. > > Ah, I hadn't read this page before: > http://wiki.apache.org/spamassassin/HandClassifiedCorpora > My recollection was that 2.x used a centrally-def

Re: Scoring base64 blob messages

2006-10-27 Thread Peter H. Lemieux
Theo Van Dinter wrote: On Thu, Oct 26, 2006 at 12:19:23PM -0400, Peter H. Lemieux wrote: No, because there are going to be a lot of mails that would hit that. Really? Maybe it's because I live in the US, but I can't think of a legitimate message I've ever received consisting only of a base64 b

Re: Scoring base64 blob messages

2006-10-27 Thread Theo Van Dinter
On Fri, Oct 27, 2006 at 11:44:48AM -0400, Daryl C. W. O'Shea wrote: > Ticketmaster sends out *a lot* of their mail this way. I'm sure it's > partly in an attempt to avoid having their mail FP against crappy filters. I'd also imagine that sometimes it's just easier to do this than try to pay atte

Re: Scoring base64 blob messages

2006-10-27 Thread Daryl C. W. O'Shea
Peter H. Lemieux wrote: Theo Van Dinter wrote: On Thu, Oct 26, 2006 at 09:46:28AM -0400, Peter H. Lemieux wrote: Also is there an SA rule that scores messages that contain only a single base64 part (as opposed to a base64-encoded attachment)? I doubt many legitimate messages arrive with onl

Re: Scoring base64 blob messages

2006-10-27 Thread Stuart Johnston
Peter H. Lemieux wrote: Theo Van Dinter wrote: On Thu, Oct 26, 2006 at 09:46:28AM -0400, Peter H. Lemieux wrote: Also is there an SA rule that scores messages that contain only a single base64 part (as opposed to a base64-encoded attachment)? I doubt many legitimate messages arrive with only

Re: Scoring base64 blob messages

2006-10-27 Thread Theo Van Dinter
On Thu, Oct 26, 2006 at 12:19:23PM -0400, Peter H. Lemieux wrote: > >No, because there are going to be a lot of mails that would hit that. > > Really? Maybe it's because I live in the US, but I can't think of a > legitimate message I've ever received consisting only of a base64 blob. You look

Re: Scoring base64 blob messages

2006-10-26 Thread Peter H. Lemieux
[EMAIL PROTECTED] wrote: Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: base64 Probably a message in base64 that does not contain any single 8bit code should be considered as an attempt to hide the message from scanners That's a good idea, Wolfgang. The mess

Re: Scoring base64 blob messages

2006-10-26 Thread Peter H. Lemieux
Theo Van Dinter wrote: On Thu, Oct 26, 2006 at 09:46:28AM -0400, Peter H. Lemieux wrote: Does SA convert the blob into text before scanning? It contains a number of drug-related words and a URI that points to "pharmconnect.org". Yes. I was pretty sure this was the case but wanted to confirm

Re: Scoring base64 blob messages

2006-10-26 Thread hamann . w
>> I received a spam today where the text was only a base64-encoded blob. >> >> Content-Type: text/html; >> charset="us-ascii" >> Content-Transfer-Encoding: base64 >> Subject: feel young and strong again >> >> PGh0bWw+DQpTdG9wIG92ZXJwYXlpbmcgZm9yIHlvdXIgcHJlc2NyaXB0aW9uIG1lZGljYXRpb25z >>

Re: Scoring base64 blob messages

2006-10-26 Thread Theo Van Dinter
On Thu, Oct 26, 2006 at 09:46:28AM -0400, Peter H. Lemieux wrote: > Does SA convert the blob into text before scanning? It contains a number > of drug-related words and a URI that points to "pharmconnect.org". Yes. > Also is there an SA rule that scores messages that contain only a single > ba

Re: Scoring base64 blob messages

2006-10-26 Thread Matt Kettler
Peter H. Lemieux wrote: > I received a spam today where the text was only a base64-encoded blob. > > Content-Type: text/html; > charset="us-ascii" > Content-Transfer-Encoding: base64 > Subject: feel young and strong again > > PGh0bWw+DQpTdG9wIG92ZXJwYXlpbmcgZm9yIHlvdXIgcHJlc2NyaXB0aW9uIG1lZGljY